A moral being is one who is capable of reflecting on his past actions and their motives - of approving of some and disapproving of others.

The love for all living creatures is the most noble attribute of man.

A man who dares to waste one hour of time has not discovered the value of life.

The world will not be inherited by the strongest, it will be inherited by those most able to change.

Nothing exists for itself alone, but only in relation to other forms of life

Building a better mousetrap merely results in smarter mice.

A mathematician is a blind man in a dark room looking for a black cat which isn't there.

An American monkey, after getting drunk on brandy, would never touch it again, and thus is much wiser than most men.

It is not the biggest, the brightest or the best that will survive, but those who adapt the quickest.

We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to be created at once by special act.

What a book a devil's chaplain might write on the clumsy, wasteful, blundering, low, and horribly cruel work of nature!

To grow you must not gain something but instead get rid of all the things that have held you back.

We don't need a degree to learn the art of giving. We just need a heart.

Before the BBC, I joined the Navy in order to travel.

No, everyone has great ideas, but what makes a difference, especially online, or just in life, is actually doing it; getting that first version out there.

[Peace in Syria] is [António Guterres] priority, and of course it's our priority, that's self-evident.

Humans are wired to feel uncomfortable with uncertainty and contingency, and so we gravitate to a position after a short time even if we have no new information.

There's time to slow down, after you're dead.

He who knows how to teach a child is not competent for the oversight of a child's education unless he also knows how to train a child.

I always wanted to be a photographer. I was fascinated with the materials, but I never dreamed I would be having this much fun. I imagined something much less elusive, much more mundane.

My daughter is in the lawsuit because you need that for standing.